157004040 has 32 divisors (see below), whose sum is σ = 471012480. Its totient is φ = 41867712.

The previous prime is 157004039. The next prime is 157004063. The reversal of 157004040 is 40400751.

It is a junction number, because it is equal to n+sod(n) for n = 157003998 and 157004016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654064 + ... + 654303.

It is an arithmetic number, because the mean of its divisors is an integer number (14719140).

Almost surely, 2^157004040 is an apocalyptic number.

157004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157004040 is an abundant number, since it is smaller than the sum of its proper divisors (314008440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157004040 is a wasteful number, since it uses less digits than its factorization.

157004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308381 (or 1308377 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 157004040 is about 12530.1252986552. The cubic root of 157004040 is about 539.4736984644.

Adding to 157004040 its reverse (40400751), we get a palindrome (197404791).

The spelling of 157004040 in words is "one hundred fifty-seven million, four thousand, forty".